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Neutron activation and prompt gamma intensity in Ar/CO2-filled neutron detectors at the European Spallation Source

Dian, E.; Kanaki, K. LU ; Hall-Wilton, R. J. LU ; Zagyvai, P. and Czifrus, Sz (2017) In Applied Radiation and Isotopes 128. p.275-286
Abstract

Monte Carlo simulations using MCNP6.1 were performed to study the effect of neutron activation in Ar/CO2 neutron detector counting gas. A general MCNP model was built and validated with simple analytical calculations. Simulations and calculations agree that only the 40Ar activation can have a considerable effect. It was shown that neither the prompt gamma intensity from the 40Ar neutron capture nor the produced 41Ar activity have an impact in terms of gamma dose rate around the detector and background level.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ar, B4C, ESS, MCNP, Monte Carlo simulation, Neutron activation, Neutron detector
in
Applied Radiation and Isotopes
volume
128
pages
12 pages
publisher
Elsevier
external identifiers
  • scopus:85026243651
ISSN
0969-8043
DOI
10.1016/j.apradiso.2017.06.003
language
English
LU publication?
yes
id
478198ee-eeb7-4bcf-ab7a-def473f54bda
date added to LUP
2017-08-29 10:41:10
date last changed
2017-08-29 10:41:10
@article{478198ee-eeb7-4bcf-ab7a-def473f54bda,
  abstract     = {<p>Monte Carlo simulations using MCNP6.1 were performed to study the effect of neutron activation in Ar/CO<sub>2</sub> neutron detector counting gas. A general MCNP model was built and validated with simple analytical calculations. Simulations and calculations agree that only the <sup>40</sup>Ar activation can have a considerable effect. It was shown that neither the prompt gamma intensity from the <sup>40</sup>Ar neutron capture nor the produced <sup>41</sup>Ar activity have an impact in terms of gamma dose rate around the detector and background level.</p>},
  author       = {Dian, E. and Kanaki, K. and Hall-Wilton, R. J. and Zagyvai, P. and Czifrus, Sz},
  issn         = {0969-8043},
  keyword      = {Ar,B4C,ESS,MCNP,Monte Carlo simulation,Neutron activation,Neutron detector},
  language     = {eng},
  month        = {10},
  pages        = {275--286},
  publisher    = {Elsevier},
  series       = {Applied Radiation and Isotopes},
  title        = {Neutron activation and prompt gamma intensity in Ar/CO<sub>2</sub>-filled neutron detectors at the European Spallation Source},
  url          = {http://dx.doi.org/10.1016/j.apradiso.2017.06.003},
  volume       = {128},
  year         = {2017},
}